The feature you'd like to see from the plug-in is impossible to implement in base FX part of VST specification. While I'm not interested in supporting the "off-line" part of the VST specification for this feature. The reality is that probably only WaveLab supports this feature while its user base is pretty narrow, so I'm not that much interested.

ReBased
on Feb 21, 2009, 3:32pm:

Hi, it turns out Wavelab uses its own proprietary interface for the resampling plugins, not the 'offline' spec, so it's actually not possible anyway.